roomette vs compartment

roomette and compartment both are nouns.

Word	Noun	Adjective	Verb	Adverb
roomette	Yes	No	No	No
compartment	Yes	No	No	No

As nouns, compartment is a hypernym of roomette; that is, compartment is a word with a broader meaning than roomette:

roomette: a small private compartment for one on a sleeping car
compartment: a partitioned section, chamber, or separate room within a larger enclosed area

roomette (noun)	compartment (noun)
a small private compartment for one on a sleeping car	a partitioned section, chamber, or separate room within a larger enclosed area
	a space into which an area is subdivided